Yanmar 6LPA-STP2 Operation Manual page 78

TROUBLESHOOTING
Periodically operate the engine near
maximum speed while underway. This
will generate higher exhaust
temperatures, which will help clean out
hard carbon deposits, maintain engine
performance and prolong the life of the
engine.
Are there abnormal vibrations or noise?
• Depending on the hull structure, engine
and hull resonance may suddenly
increase at certain engine speed ranges,
causing heavy vibrations. Avoid operation
in this speed range. If any abnormal
sounds are heard, stop the engine and
inspect for cause.
Alarm sounds during operation.
• If the alarm sounds during operation,
lower the engine speed immediately,
check the warning lamps and stop the
engine for repairs.
72
Is there water, oil or fuel leakage? Are
there any loose bolts or connections?
• Check the engine room daily for any leaks
or loose connections.
Is there sufficient fuel in the fuel tank?
• Refill fuel in advance to avoid running out
of fuel. If the tank runs out of fuel, bleed
the fuel system. See Bleeding the Fuel
System on page 30.
6LPA Series Operation Manual
© 2007 Yanmar Marine International